降雨机 meaning in English

rain-dropping machine

But we ' ll see a 50 percent chance of rain wednesday evening , as more clouds move in from the south
但因有云层从南边移过来，故星期三晚间会有百分之五十的降雨机率。
Before the festival began , the weather forecast predicted a high chance of showers on the two days during which it was scheduled , potentially ruining it
活动开始前，气象预报两天的活动期间降雨机率很高，而下雨将会使这个户外活动无法顺利举行。